@article{goodcontrolsgonebaddifferencein,
  title = {Good Controls Gone Bad: Difference-in-Differences with Covariates},
  author = {Sunny Karim and Matthew D. Webb},
  year = {2024},
  eprint = {2412.14447},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2412.14447v1},
}